EEM timer trigger stopped working

[Ralph Mondegar]

Good evening gentlemen,

I've noticed that, on one of my L3 switchs, my EEM scripts that are using timer as a detector simply aren't triggering at all.
I don't know if there is something wrong with the syntax or if it is a bug.
I have tried a simpler version of what I need and isn't working either, which is the following:

event manager applet test
event timer countdown time 30
action 005 syslog msg "test"
action 010 cli command "end"

Nothing goes to logging or terminal output.
I also tried to enable the debug to see if I could catch anything but the output doesn't ring any bell to me. The output is the following:

May 29 23:01:09: fh_send_timer_fd_msg: msg_type=2
May 29 23:01:09: fh_fd_timer_event_create: re=0x660D87C, sid=196
May 29 23:01:09: fh_send_timer_fd_msg: sval=0
May 29 23:01:42: fh_send_timer_fd_msg: msg_type=114
May 29 23:01:42: fh_send_timer_fd_msg: sval=0
May 29 23:02:48: fh_send_timer_fd_msg: msg_type=10
May 29 23:02:48: fh_fd_timer_event_unregister: re=0x65B98D0, sid=195
May 29 23:02:48: fh_send_timer_fd_msg: sval=0
May 29 23:02:48: fh_send_timer_fd_msg: msg_type=6
May 29 23:02:48: fh_fd_timer_event_register: re=0x660D87C, sid=196
May 29 23:02:48: fh_send_timer_fd_msg: sval=0
May 29 23:02:48: fh_send_timer_fd_msg: msg_type=4
May 29 23:02:48: fh_send_timer_fd_msg: sval=0
May 29 23:02:48: fh_send_timer_fd_msg: msg_type=32
May 29 23:02:48: fh_fd_timer_event_arm: re=0x660D87C, sid=196
May 29 23:02:48: fh_send_timer_fd_msg: sval=0

I've searched known bugs under Cisco bugsearch and Google but couldn't find a similar scenario.
Does anyone know what is wrong?

Additional information:
- Switch: WS-C3750X-48T-S
- IOS Version: 12.2(53)SE2
- Embedded Event Manager Version 3.20
- License: ipservices

[Joe Clarke]

This sounds vaguely familiar, but I don't think a bug was ever filed given that the code is fairly old, it was hard to reproduce, and a reboot recovered the issue.  That said, a countdown timer only executes once, so make sure that you're reregistering the policy to get the timer to rearm.

[Ralph Mondegar]

Thanks for answering Joseph.

Yes, I've tested several times and in several switchs. Only that one fails to do anything at all which makes me think it is a bug.

If I change to event none and trigger it manually it works just fine.

Is there a way to check if the policy was registered correctly? Maybe check the remaining timer until it is triggered or even if there is any process that should be running?

[Joe Clarke]

show event manager policy registered will show if it's registered properly.  Unfortunately, seeing the remaining timer seconds is not yet implemented (though I have requested it).

[Ralph Mondegar]

I just tested once again and no dice. Is this the output expected?

switch#sh run | begin applet
event manager applet test
 event timer countdown time 60
 action 005 syslog msg "test"
 action 010 cli command "end"
!
end

switch#sh clock
20:06:26.219 BRT Sat May 30 2015
switch#show event manager policy registered
No.  Class     Type    Event Type          Trap  Time Registered           Secu  Name
1    applet    user    timer countdown     Off   Sat May 30 20:03:02 2015  none  test
 time 60.000
 maxrun 20.000
 action 005 syslog msg "test"
 action 010 cli command "end"

I should be able to get a window to reboot it next week.

I wonder if the last available ios fixes this.

[Joe Clarke · Accepted solution]

I haven't seen any issues in 15.0(2)SE relating to timers.  There is a bug in 15.2 code where the timer ED is missing, though.

[Ralph Mondegar]

Thanks again Joseph. I'll give it a try.

Hopefully it works.